package com.atguigu.gulimall.order.config;

import feign.RequestInterceptor;
import feign.RequestTemplate;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.servlet.http.HttpServletRequest;

@Configuration
public class GuliFeignConfig {

    @Bean("requestInterceptor")
    public RequestInterceptor requestInterceptor(){
     return new RequestInterceptor() {
         @Override
         public void apply(RequestTemplate template) {
             //1.RequestContextHolder拿到刚进来的这个请求
             ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.currentRequestAttributes();
             if (attributes!=null){
                 HttpServletRequest request = attributes.getRequest();//老请求
                 if (request !=null){
                     //同步请求头数据,Cookie
                     String cookie = request.getHeader("Cookie");
                     //给新请求同步了老请求的cookie
                     template.header("Cookie", cookie);
                 }
             }
         }
     };
    }
}
